I've saw a big push with VR last holiday season. A lot of those headsets were left on the shelves after them. Just no real content to keep people interested in the technology, some people get sick watching it, some don't see it's any big deal and others just see it as something like 3D which will be a novelty and nothing more. Maybe interests has already waned. As Steve Jobs said once, Apple creates products that people don't even know they want yet. But they will, and that impulse buying along with creating a great product to back it up can make for success. But Apple has had its share of duds too. Products can sometimes just happen at the wrong time, or are poorly conceived. Take Microsoft who did a tablet first, but most forget this. Obviously it was not done as well as the iPad or backed up with a solid app store, or iTunes success. VR might be one of those engineering duds that will resurface one day in a better form. Sort of like Google glasses which never caught on, but not for lack of design or engineering. It as just something people never wanted. Apple made less than a stellar hit with Apple watch. Sure some die hard Apple fans have bought them. But the watch is hardly on every Apple fans wrist. Technology like every other product is accepted or rejected for many reason. Some of which remain a mystery to those who try and guess what consumers will want.

Pretty simple. It's not a market until Apple enters it.